Chain transfer agent for addition mass polymerization of polycycloolefinic monomers

a polycycloolefinic monomer and chain transfer agent technology, applied in the field of chain transfer agent for addition mass polymerization of polycycloolefinic monomers, can solve the problems of high molecular weight polymers, inability to use in many applications involving solvent-based compositions, and large amount of solid and liquid waste, so as to reduce the amount of initiators, and control the effect of polymerization activity
US9771443B2Active Publication Date: 2017-09-26SUMITOMO BAKELITE CO LTD
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Patents(United States)
Current Assignee / Owner
SUMITOMO BAKELITE CO LTD
Publication Date
2017-09-26

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Abstract

The present invention relates to use of certain chain transfer agents to control molecular weight of addition mass polymerization of certain polycycloolefinic monomers. More specifically, the present invention relates to use of a series of substituted bicycloalkenes as chain transfer agents in the addition mass polymerization of a series of functionalized norbornene-type monomers. This invention also relates to compositions containing bicycloalkenes as chain transfer agents in forming “in mold” polycycloolefinic polymers by addition mass polymerization.
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Description

CROSS REFERENCE TO RELATED APPLICATIONS

[0001] This application claims the benefit of U.S. Provisional Application No. 62 / 140,514, filed Mar. 31, 2015, which is incorporated herein by reference in its entirety.BACKGROUND OF THE INVENTION

[0002] Field of the Invention

[0003] The present invention relates to use of certain chain transfer agents to control molecular weight of addition mass polymerization of certain polycycloolefinic monomers. More specifically, the present invention relates to use of a series of substituted bicycloalkenes as chain transfer agents in the addition mass polymerization of a series of functionalized norbornene-type monomers. This invention also relates to compositions containing bicycloalkenes as chain transfer agents in forming “in mold” polycycloolefinic polymers by addition mass polymerization.

[0004] Description of the Art

[0005] Cyclic olefin polymers, such as polynorbornenes (PNBs), are widely used in a variety of electronic, optoelectronic and other applicatio...

Claims

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